2. Corrugated wave beam guardrail is a kind of guardrail, which was installed for collision avoidance in expressway. It is the main form of semi-rigid guardrail, which is a continuous structure composed of corrugated steel guardrail plates spliced with each other and supported by main columns. Corrugated beam guardrail is mainly used to prevent out-of-control vehicles from rushing out of the road. Generally, galvanized steel plate is adopted, and different specifications are adopted according to different highway grades.
3. There are many manufacturers selling corrugated beam guardrail, so it is better to pay attention to its zinc layer and thickness when choosing corrugated beam guardrail, which is more conducive to better judging its quality, such as Zhen Xuan Land Transportation Facility, Keyang Glares, Shiteng Holdings, Keyang Star, Glares and Tianan Transportation. It's your choice.
1. Function of corrugated beam guardrail: When a vehicle collides with it, the corrugated steel guardrail plate is not easy to be damaged because of its good crashworthiness and energy absorption, and it can also protect the vehicle and the driver. When road maintenance or other reasons require parallel traffic, each group of guardrail posts at the opening can be conveniently pulled out and removed, thus opening a passage for vehicles to pass.
2. Before construction, it is necessary to check the installation of the guardrail sign of the corrugated beam. The construction of corrugated beam rigid guardrail should be carried out after the kerb construction is completed. Before the completion of kerb construction, theodolite and level shall be used. Relevant materials such as guardrail posts, guardrail plates, anti-blocking blocks, connecting frames, terminals, etc. shall be submitted for inspection to prove that their materials, strength and coating quality are qualified, and they can only enter the construction site with the consent of the supervision engineer. After the materials enter the site, the quality inspection engineer of the contractor shall conduct self-inspection at the specified frequency, and the qualified materials shall be reported to the supervisor for inspection and verification before they are allowed to be used. The on-site inspection items of guardrail materials include: the dimensions and galvanized quality of guardrail columns, guardrail plates, anti-blocking blocks, connecting webs and related materials at the ends. The galvanized thickness of the material shall meet the design requirements, and the zinc layer shall be free from shedding, pollution and damage, and the adhesion of the zinc layer shall be free from cracking and shedding after being struck as required. Construction lofting inspection: before lofting inspection, check whether the guardrail column exists with pipeline engineering and drainage engineering, and make technical disclosure before construction to avoid damaging pipeline engineering and drainage engineering.